There are a wide variety of waterproof materials, which can be pided into four categories based on their main raw materials: asphalt waterproof materials, rubber plastic waterproof materials, cement waterproof materials, and metal waterproof materials. Waterproof coatings are pided into four categories: hard mortar, flexible mortar, acrylic ester, and single component polyurethane

1. Film thickness inspection:

The needle puncture method should be used to puncture three points every 100 square meters, measure their height with a ruler, and take the average value. The film thickness should be greater than 2 millimeters.

. During puncture, a colored pen should be used to mark for repair 2. Inspection of elongation at break: During waterproof construction, the supervisor can go to the construction site and apply the mixed material multiple times on a flat glass plate (the glass plate should be waxed first), with a film thickness of 1.2-1.5mm. After being placed for 7 days, soak in 1% alkaline water for 7 days, and then bake in a 50 ℃ soil 2 ℃ oven for 24 hours to conduct a dumbbell tensile test. The elongation retention rate is required to reach 80% (200% without treatment). If it fails to meet the standard, it means that the proportion of lotion is insufficient during construction 3. Water resistance inspection:

Apply the coating multiple times on the cement block, with a film thickness of 1.2-1.5 millimeters. Leave it for 7 days and soak it in 1% alkaline water for 7 days without layering or hollowing. It is considered qualified

4. Impermeability inspection:

Under conditions, use an instrument to test. The method is to prepare the coating in proportion, apply it multiple times on the glass plate (the glass plate is first waxed), with a thickness of 1.5 millimeters, let it stand for 7 days, and then put it in an oven at 50 ℃± 2 ℃ for 24 hours. After taking it out, leave it for 3 hours to conduct an impermeability test, and the impermeability is 0.3MPa. Maintaining no leakage for 30 minutes is considered qualified If the conditions are not met, visual inspection can be used to check the waterproof effect. The method is to pide the coating into 4-6 times and brush it onto the non-woven fabric. After drying thoroughly (about 24 hours), the film thickness is 1.2-1.5 millimeters, and it is made into a slow box shape and suspended, but there should be no dead corners. Add 1% alkaline water into the box, and it is qualified if there is no leakage within 24 hours V. Low temperature compliance inspection:

Function of testing report:

1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report

2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms

3. Used as a sales report: issuing legally effective testing reports to make consumers more confident

4. Papers and research: Provide professional personalized testing needs

5. Judicial services: providing scientific, fair, and accurate testing data

6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problems

100% inspection and testing process:

1. Telephone communication and confirmation of requirements

2. Recommend solutions and confirm quotations

3. Mail samples and arrange testing

4. Progress tracking and result feedback

5. Provide reports and after-sales service

6. If urgent or priority processing is required

Testing and testing characteristics:

1. The testing industry is fully covered, meeting different testing needs

2. Fully cover the laboratory and allocate localized testing nearby

3. Engineers provide one-on-one services to make testing more accurate

4. Free initial testing, with no testing fees charged

5. Self service order delivery for free on-site sampling

6. Short cycle, low cost, and attentive service

7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc

8. The testing report is authoritative and effective, and is generally used in China